Dump car for mines and the like



July 10,1934. H. J. HICK DUMP CAR FOR MINES AND THE LIKE Filed Sept. 11,1933 2 Sheets-Sheet l lilai gj July 10, 1934. H. J. HICK DUMP CAR FORMINES AND THE LIKE Filed Sept. 11, 1933 2 Sheets-Sheet. 2

Patented July 10, 1934 DUMP CAR FQRCMNES AND THE LIKE Harry Hick,Alliance, Ohio, assignor to The Machined Steel Casting Company,Alliance, Ohio, a corporation of Ohio Application September 11, 1933,Serial No. 688,961

12 Claims.

My invention relates to dump cars for use in mines and the like fortransporting materials from one location, as at the point of mining toanother location as at a storage pile, bin or the like; and moreparticularly my invention relates to such cars which include wheelspreferably rolling on a track, a frame supported by the. wheels, and adump container operatively mounted on and associated with the frame andadapted'for automatic actuation to dump material from the container atthe storage pile, bin or the like, while the car is moving along thetrack.

It is desirable that the dumping action of such a car be as rapid aspossible, so that the speed of the car or a train of the cars may berelatively high.

It is also desirable that the dumping action shall not tip the frame andwheels so that the normal movement of the car on the track may not bedisturbed.

It is furthermore desirable that the frame and. container be of suchform and arrangement as to permit integral casting from steel of the.frame and of bottom portions or all of the container so as to reducemaintenance costs, which are usually relatively high in mine cars ofriveted structural steel construction, because the riveted'joints' ofriveted structural steel cars are banged or jarred loose by the roughusage to which the cars are subjected.

The objects of the present improvements include the provision of animproved automatically actuated dump car of the foregoinggeneral-description, and which is so constructed and arranged as topermit very rapid dumping action.

Further objects of the present improvements include the provision ofsuch an automatically actuated dump car, and actuating means therefor,of such nature that the frame and the wheels f of the car are not tippedor otherwise disturbed during the dumping action.

Further objects of the present improvements include the provision of adump car of the fore-- g going general character, and which may includean integral cast steel frame, and a container including integral caststeel portions, the frame and the container being of such form andarrangement as to permit the operative mounting of the container on theframe to be effected by 59 pivotally mounting the integral portions ofthe container on the integral frame, so that, particularly in thedumping action of the car, the major portions of the loads imposed uponthe container and frame be transmitted through the integral portions ofthe container and integralframe, thereby avoiding the jarring andloosenmg action which would be imposed upon riveted container portionsoperativelymounted on a riveted frame.

The foregoing and other objects are attained by the improvements,apparatus, parts, combinations, and sub-combinations, which comprise thepresent invention, and the nature of, which is set forth in thefollowing general statement, and preferred embodiments of which,together with their mode of use, are set forth in the followingdescription, and which are particularly and distinctly pointed out andset forth inthe appended claims forming part hereof.

The nature of' the improved dump car of the present invention may bestated in general terms as including preferably four flanged supportinwheels, 2. preferably cast steel centrally Open frame includinglaterally spaced longitudinally extending sets of side members andlongitudinally 7 spaced laterally. extending sets of endmembers, andstub shaft means independ ntly iournallin eachwheel .upon one set of'theframe Side members, opposite wheels being axially alined with eachother.

, The frame also preferably includes. at one end, thereof a laterallyand upwardly extending end closure wall, and a supporting and sideclosure wall extending longitudinally from. each side of the end closurewall towards the opposite end of the frame.

In addition to the foregoing, the improved car also includes an openended container preferably having a cast steel bottom wall, of suchdimensions as to permit its movement. intov and out of the centralopening of the frame, integral cast steel side walls extending, upwardlyfrom the .bottom wall, pivot means at opposite upper end corners of theintegral side walls pivotally mount.- ing the container tothe upper endsof the frame supporting andside closurewalls, and a preferably caststeel integral end wall extending between the other endsof the containerbottom and side walls.

The container side walls also preferably include outwardly extendingledge portions adapted to normally rest on upper portions of the sets ofcar frame side members; and in such normal position the frame end andside closure walls close the open end of the container.

A container tilting wheel is rotatably mounted on each container sidewall at the end thereof opposite its pivotal mounting on the frame, thetilting wheels being axially alined with each other and being adaptedfor running over cam tracks 110 provided for tilting the container asthe car frame is moved in the normal manner along a usual track.

Anti-tipping or hold-down wheels are operatively mounted on the frameand cooperate with anti-tipping or hold-down tracks for resisting thetipping moment which would otherwise be imposed upon the frame by thepivoting of the container to the frame at upper end corners of thecontainer as aforesaid, such pivotal mounting of the container servingto permit the desired maximum speed in the dumping or tilting action ofthe container.

The improved dump cars furthermore preferably include improvements inthe construction. arrangement, and cooperative association of certainparts as are hereinafter set forth, and/or hereinafter set forth andclaimed.

Preferred embodiments of the improved dump car and of the parts thereof,and of the cooperating and associated flanged wheel tracks, tilting camtracks, and anti-tipping or hold-down tracks are illustrated in theaccompanying drawings forming part hereof, in which Figure 1 is afragmentary plan view illustrating one embodiment of the improved dumpcar and associated tracks, the container being illustrated in its normalposition resting upon the frame, and ready for receiving materials;

Fig. 2, a fragmentary elevation view thereof illustrating the containerand associated tracks after the container has been tilted by rolling ofthe container tilting wheels over the tilting cam tracks, and alsoillustrating in detail one container hold-down wheel on the car frameoperating against one of the hold-down tracks;

Fig. 3, a longitudinal sectional view as on line 3-3, Fig. 1,illustrating the improved car and associated tracks;

Fig. 4, a transverse sectional view thereof as on line 4-4, Fig. 3, andlooking in the direction of the arrows on line 4-4, Fig. 3;

Fig. 5, another transverse sectional view thereof as on line 5-5, Fig.3, and looking in the direction of the arrows on line 55, Fig. 3;

Fig. 6, another transverse sectional view of the tracks on line 6-6,Fig. 3, and an end elevation view of the car looking in the direction ofthe arrows on line 66, Fig. 3; and

Fig. '7, a fragmentary side elevation with portions broken away andillustrated in section illustrating a train of the improved cars and theassociated tracks during dumping action of two of the cars.

Similar numerals refer to throughout the drawings.

In the drawings, each of the improved dump cars is indicated generallyby 10; and the cars 10 are supported and roll on usual tracks 11a and11b and are operatively associated as hereinafter set forth in detail,with tilting cam tracks 120, and 12b, and with hold-down tracks 13a and131).

Each car 10, as illustrated, includes four flanged supporting wheels14a-1 and 14a-2,

similar parts and 14b-1 and 1412-2.

Each car 10 furthermore includes a preferably cast steel centrally openframe indicated generally by 15 having laterally spaced longitudinallyextending sets of side members 16a and 16b connected at their ends withthe ends of longitudinally spaced laterally extending sets of endmembers 16c and 16d.

Stub shaft means each indicated generally by 17 independently journaleach flanged wheel upon one set of the frame side members, the Whe ls14a -1 and 14a-2 being journalled on the set of frame side members 16aand the wheels 1412-1 and 1412-2 being journalled on the set of frameside members 161), and the wheels 14a-1 and 14b-1 being axially alinedwith each other and being supported and rolling respectively on thetracks 11a and 11b, and the wheels l4a-2 and 1412-2 being axially alinedwith each other and being supported and rolling respectively on thetracks 11a and 112).

Each frame 15 also includes at one end F of the frame and car, normallythe forward end thereof, a laterally extending end closure wall 18 whichalso extends upwardly above the level of the upper faces of sets offrame side and end members; and a supporting and side closure wall 19:].extends longitudinally from one side 20a of the end closure wall 18towards the opposite end R, of the frame and car, normally the rear endthereof, and also a supporting and side closure wall 19b extendslongitudinally from the other side 20b of the end closure wall 18towards the end R of the frame and car.

Accordingly the end and side closure walls 18 and 19a and 191) as viewedfrom above or below are in the form of a U opening towards the end R ofthe frame and car.

The wheels 14ct-l and l4a-2 are necessarily alined with each other intheir planes of rotation,

as are the wheels 1413-1 and 1427-2; and the set of frame side members16a have operatively mounted thereon between the wheels 1411-1 and1400-2 a set of brake shoe means indicated generally by 21a; andsimilarly the set of frame side members 16?) have operatively mountedthereon between the wheels 145-1 and 1411-2 a set of brake shoe meansindicated generally by 212); and the brake shoe means 21a, and 21b areof a usual construction and mode of operation, and

are controlled as by means of a brake lever 22 operatively mounted onthe outer face of the frame end closure wall 18, and operativelyconnected with the brake shoe means 21a and 211), respectively, as byusual links and levers indicated generally by 23a and 23b.

In addition to the wheels l4a-1, 14a-2, 14b-1, and 1417-2, rotatablysupporting and arranged with the frame 15, as above described, each car10 furthermore includes an upwardly opening container indicatedgenerally by 25 and which is also itself open ended at the normallyforward end F thereof and of the frame and car.

The container 25 preferably includes a cast steel bottom wall 26 of suchdimensions as to permit its movement into and out of the central opening27 of the frame 15.

Preferably integral cast steel side walls 280, and 28?) extend upwardlyfrom the opposite longitudinal sides of the container bottom wall 26 anda preferably cast steel integral end wall 29, located at the normallyrear end R of the container, the frame and the car, extends between thesimilarly located ends of the container bottom and side walls.

In order to minimize the over-all weight of the I car, the cast steelcontainer side walls 28a and 28b terminate throughout the major portionof their lengths in outwardly and upwardly extending side flange members30a and 3% respectively;

and the side flange members 30a include an out- I wardly extending legflange 30-1-1 and an upwardly extending leg flange 3000-2; and similarlythe side flange members 301) include an outwarly tending leg flange3011-2.

Below the flange members 300 and30b the: side walls 28a and 28b are sospaced with respect toi each other as to bemovable with the container.

bottom wall 26 into and out of the central'opening 2.7 of the frame 15,.and, in: the normal. material-receiving position of the container, as.best shown in Fig. 4, the leg flanges--30a1; and 3011-1 rest upon andare supported by theupperfaces of the sets of frame side membersI'Sa'and 162)..

At the forward. end F. 'of the car,.the integral cast steel, portions ofthe container 25 include suspending and side closure walls. 31'a'an'd31b; extending upwardly from the leg. flanges 8011-2 and 30b2;. andvpivot pin-and bracket means 32a and. 32b pivotally connect the upperends of the: container suspending and side closure walls 31a and 311)respectively withthe upper ends of theframe supporting and siderclosurewalls 190- gof. the car, and the integral .container bottom and sidewalls may be similarly enlarged at the forward end F of the car' asillustrated, for attaining maximum capacity of the car.

For facilitating the dumping. action of. the

'1 container, the enlarged portions thereof may include downwardlysloping wall portions 33a and The pivotal mounting of the castintegraliconztainer portions at the upper end. corners therei' of uponthe upper endsgof the frame walls 19a plate extension end wall 36 whichmay be secured asby. welding tothe upper-portions of: the integralcontainer side walls 28a and 29a; and the'integral.

container end wall 29, whereby the over-all weight of'the container maybe minimized as compared with casting the entire. container integrally,while at the same time the advantages of the pivotal mounting ofintegral container walls on the frame are attained.v

At the normally rear endR of the'car,,thecontainer integral side wall28a: has. rotatably mountedon its leg flange 30a-2, atilting roller 37a;and similarly the container integral side wall28b has rotatably mountedonits leg flange 30b-2, a tilting roller 37b.

The axes of rotation of the tilting rollers 37av and 37b are preferablyalined with each other,

and extend laterally with respect to the longitudinal axis of the car,and the rollers 37m and 37b roll on the upper cam faces of the camtilting tracks 12a and 12b, whereby when the'car is ad.- vanced on thesupporting tracks lla' and; 11b, and the tilting rollers 37a and 37bpass over the hump portions H of the cam tracks 12a and 12b, as shown inFigs. 2' and; '7, the container is tilted on the pivoting means 32a; and32b and any material in the container dumps therefrom through the.normally forward end of theframe opening 7 Such tilting of the containeron the frame 15 causes a tipping moment-to be applied tothe frametendingto'tip the frame about the normally'forward supporting wheelsl4al and 14b1,

and to neutralize such tipping moment, at thenormally rear end R of thecar, the sets of frame side members 16a and 16b have rotatably mountedthereon anti-tipping or hold-down rollers 38a and 38b, which rollagainst under faces respectively of the anti-tipping or hold-down tracks13a and 13b, as best shown in Figs. 2

and 6.

The hump portions of the cam tracks 12a and 12b as illustrated includesloping portions H1 and H2 extending upwardly from the level of thehold-down tracks 13a and 13b and with a straightway portion H3interposed between the upper ends of the sloping portions Hl and H2.

The sloping portions H1 and H2 of the cam" tracks preferably have thesame although oppositely directed slopes, so that the containerswillbedumped when a train of the cars passes through and over the cam tracksin either direction. r v

As illustrated the car in Fig. 2 and the train; of cars in Fig. 7 aremoving in the directions of the arrows D.

A dumping action of the containers will result if the cars as headed ineach of Figs. 2 or 7 are moved in the opposite direction, but thepreferred direction of movement is as indicated to attain the dumpingaction with a minimum strain upon the cars.

The cars may be coupled one with another to make up a train by any usualcoupling means, such as pin and link means 39.

Each of the cars 10, as thus set forth, may be described in somewhatdifferent and more general. terms as including a plurality of supportingwheels 140-1, 14a2, 14bl. and 14b2, a frame 15 stub shaft means eachindicated generally by 1''! independently journalling each supportingwheel on the frame, supporting .walls 19a and. 19b extending upwardlyfrom the frame, a container having a dumping opening at one end andincluding a bottom wall 26 and longitudinally extending side walls 280and 28b and an end wall 29 extending between the bottom and side wallsat the other end of the container, and pivot means 32a and 32b'pivotallymounting the upper corners of the container side walls 28a and28badjacent the dumping opening to the upper ends of the framesupporting walls 190; and 19b, respectively.

. The tilting rollers 37a. and 37b operatively mounted as aforesaid onthe frame side walls 28a and 28b may furthermore be described in otherterms as comprising cam follower means adapted to coact with the camtrack means 12a and 12b for tilting the container with respect to theframe 15; and similarly the hold-down rollers 38a and 38b operativelymounted on the frame 15 asaforesaidmay be described in other terms ascomprising hold-down means on the frame adapted to coact with thehold-down track means 13a and 13b for preventing tipping of the frameand its. supporting wheels.

I claim:

1. A dumpcar for mines and the like including a plurality of supportingwheels, a frame having a central opening and including laterally spacedlongitudinally extending sets of side meming end closure wall at one endof the frame, supporting and side closure walls on the frame, onesupporting and side closure wall extending longitudinally from each sideof the end closure wall toward the opposite end of the frame, acontainerhaving a dumping opening at one end and including a bottom walland longitudinally extending side walls and an end wall extendingbetween the bottom and side walls at the other end of the container, thecontainer being adapted to be moved into and out of the central openingof the frame, and the container including outwardly extending membersadapted to seat upon and be supported by upper members of the frame, andpivot means pivotally mounting the upper cor- 11ers of the containerside walls adjacent the dumping opening to the upper ends of the framesupporting and side closure walls.

2. A dump car for mines and the like including a plurality of supportingwheels, an integral cast frame having a central opening and includinglaterally spaced longitudinally extending sets of side members andlongitudinally spaced laterally extending sets of end members, meansindependently journalling each wheel upon one set of the' frame sidemembers, a laterally and upwardly extending end closure wall atone endof the frame, supporting and side closure walls on the frame, onesupporting and side closure wall extending longitudinally from each sideof the end closure wall toward the opposite end of the frame, anintegral cast container having a dumping opening at one end andincluding a bottom wall and longitudinally extending side walls and anend wall extending between the bottom and side Walls at the other end ofthe container, the container being adapted to be moved into and out ofthe central opening of the frame, and the container including outwardlyextending members adapted to seat upon and be supported by upper membersof the frame, and pivot means pivotally mounting the upper corners ofthe container side walls adjacent the dumping opening to the upper endsof the frame supporting and side closure walls.

3. A dump car for mines and the like including a plurality of supportingwheels, a frame having a central opening and including laterally spacedlongitudinally extending sets of side members and longitudinally spacedlaterally extending sets ,of end members, means independently journalingand side closure wall extending longitudinally from each side of the endclosure wall toward the opposite end of the frame, a container having adumping opening at one end and including a bottom wall andlongitudinally extending side walls and an end wall extending betweenthe bottom and side walls at the other end of the container, thecontainer being adapted to be moved into and out of the central openingof the frame, and the container including outwardly extending membersadapted to seat upon and be supported by upper members of the frame,pivot means pivotally mounting the upper corners of the container sidewalls adjacent the dumping opening to the upper ends of the framesupporting and side closure walls, and cam follower means on thecontainer adapted to coact with cam track means for tilting thecontainer with respect to the frame.

4. A dump car for mines and the like including a plurality of supportingwheels, an integral cast frame having a central opening and includinglaterally spaced longitudinally extending sets of side members andlongitudinally spaced laterally extending sets of end members, meansindependently journalling each wheel upon one set of the frame sidemembers, a laterally and upwardly extending end closure wall at one endof the frame,-supporting and side closure walls on the frame, onesupporting and side closure wall extending longitudinally from each sideof the end closure wall toward the opposite end of the frame, anintegral cast container having a dumping opening at one end andincluding a bottom wall and longitudinally extending side walls and anend wall extending between the bottom and side walls at the otherend ofthe container, the container being adapted to be moved into and out ofthe central opening of the frame, and the container including outwardlyextending members adapted to seat upon and be supported by upper membersof the frame, pivot means pivotally mounting the upper corners of thecontainer side walls adjacent the dumping opening to the upper ends ofthe frame supporting and side closure walls, and cam follower means onthe container adapted to coact with cam track means for tilting thecontainer with respect to the frame.

5. A dump car for mines and the like including a plurality of supportingwheels, a frame having a central opening and including laterally spacedlongitudinally extending sets of side members and longitudinally spacedlaterally extending sets of end members, means independently journallingeach wheel upon one set of the frame side members, a laterally andupwardly extending end closure wall at one end of the frame, supportingand side closure walls on the frame, one supporting and side closurewall extending longitudinally from each side of the end closure walltoward the opposite end of the frame, a container having adumpingopening at one end and including a bottom wall and longitudinallyextending side walls and an end wall extending between the bottom andside walls at the other end of the container, the container beingadapted to be moved into and out of the central opening of the frame,and the container including outwardly extending members adapted to seatupon and be supported by upper members of the frame, pivot meanspivotally mounting the upper corners of the container side wallsadjacent the dumping opening to the upper ends of the frame supportingand side closure walls, and hold-down means on the frame adapted tocoact withhold-down track means for preventing tipping of the frame andits supporting wheels.

6. A dump car for mines and the like including a plurality of supportingwheels, an integral cast frame having a central opening and includinglaterally spaced longitudinally extending sets of side members andlongitudinally spaced laterally extending sets of end members, meansin-.

dependently journalling each wheel upon one set of the frame sidemembers, a laterally and upwardly extendingend closure wall at one endof the frame, supporting and side closure walls on the frame, onesupporting and side closure wall extending longitudinally from each sideof the end closure wall toward the opposite end of the frame, anintegral cast container having a dumping opening at one end andincluding a bottom wall and longitudinally extending side walls and anend wall extending between the bottom and side walls at the other end ofthe container, the container being adapted to be lei) moved into and outof the central opening of the frame, and the container includingoutwardly extending members adapted to seat upon and be supported byupper members of the frame, pivot means pivotally mounting the uppercorners of the container side walls adjacent the dumping opening to theupper ends of the frame supporting and side closure walls, and hold-downmeans on the frame adapted to coact with hold-down track means forpreventing tipping of the frame and its supporting wheels.

7. A dump car for mines and the like including a plurality of supportingwheels, a frame having a central opening and including laterally spacedlongitudinally extending sets of side members and longitudinally spacedlaterally extending sets of end members, means independently journallingeach wheel upon one set of the frame side members, a laterally andupwardly extending end closure wall at one end of the frame, supportingand side closure walls on the frame, one supporting and side closurewall extending longitudinally from each side of the end closure walltoward the opposite end of the frame, a container having a dumpingopening at one end and including a bottom wall and longitudinallyextending side walls and an end wall extending between the bottom andside walls at the other end of the container, the container beingadapted to be moved into and out of the central opening of the frame,and the container including outwardly extending members adapted toseatupon and be supported by upper mem bers of the frame, pivot meanspivotally mounting the upper corners of the container side wallsadjacent the dumping opening to the upper ends of the frame supportingand side closure walls, cam follower means on the container adapted tocoact with cam track means for tilting the container with respect to theframe, and hold-down means on the frame adapted to coact with holddowntrack means for preventing tipping of the frame and its supportingwheels.

8. A dump car for mines and the like including a plurality of supportingwheels, an integral cast frame having a central opening and includinglaterally spaced longitudinally extending sets of side members andlongitudinally spaced laterally extending sets of end members, meansindependently journalling each wheel upon one set of the frame sidemembers, a laterally and upwardly extending end closure wall at one endof the frame, supporting and side closure walls on the frame, onesupporting and side closure wall extending longitudinally from each sideof the end closure wall toward the opposite end of the frame, anintegral cast container having a dumping opening at one end andincluding a bottom wall and longitudinally extending side walls and anend wall extending between the bottom and side walls at the other end ofthe container, the container being adapted to be moved into and out ofthe central opening of the frame, and the container including outwardlyextending members adapted to seat upon and be supported ,by uppermembers of the frame, pivot means pivotally mounting the upper cornersof the container side walls adjacent the dumping opening to the upperends of the frame supporting and side closure walls, cam follower meanson the container adapted to coact with cam track means for tilting thecontainer with respect to the frame, and hold-down means on the frametending side walls and an end wall extending between the bottom and sidewalls at the other end of the container, pivot means pivotally mountingthe upper corners of the container side walls adjacent the dumpingopening to the upper ends of the frame supporting walls, and hold-downmeans on the frame adapted to coact with hold-down track means forpreventing tipping of the frame and its supporting wheels.

10. A dump car for mines and the like including a plurality ofsupporting wheels, a frame, means journalling the wheels on the frame,supporting walls extending upwardly from the frame, a container having adumping opening at one end and including a bottom wall andlongitudinally extending side walls and an end wall extending betweenthe bottom and side walls at the other end of the container, pivot meanspivotally mounting the upper corners of the container side wallsadjacent the dumping opening to the upper ends of the frame supportingwalls, cam follower means on the container adapted to coact with camtrack means for tilting the' container with respect to the frame, andhold-down means on the frame adapted to coact with hold-down track meansfor preventing tipping of the frame and its supporting wheels.

11. In combination, hold-down track means and a dump car, the dump carincluding a plurality of supporting wheels, a frame, means journallingthe wheels on the frame, supporting walls extending upwardly from theframe, a container having a dumping opening at one end and including abottom wall and longitudinally extending side walls and an end wallextending between the bottom and side walls at the other end of thecontainer, pivot means pivotally mounting the upper corners of thecontainer side walls adjacent the dumping opening to the upper ends ofthe frame supporting walls, and hold-down means on the frame adapted tocoact with the hold-down track means for preventing tipping of the frameand its supporting wheels.

12. In combination, cam track means and holddown track means and a dumpcar, the dump car including a plurality of supporting wheels, a frame,means journalling the wheels on the frame, supporting walls extendingupwardly from the frame, a container having a dumping opening at one endand including a bottom wall and longitudinally extending side walls andan end wall extending between the bottom and side walls at the other endof the container, pivot means pivotally mounting the upper corners ofthe container side Walls adjacent the dumping opening to the upper endsof the frame supporting walls, cam follower means on the containeradapted to coact with the cam track means for tilting the container withrespect to the frame, and holddown means on the frame adapted to coactwith the hold-down track means for preventing tipping of the frame andits supporting wheels.

HARRY J. HICK.

